37 Installation, maintenance and repair of printing machines, offset printing machines, rotary web printing machines, rotary sheet printing machines, screen printing machines, pad printing machines, flexographic printing machines, gravure printing machines, printing machines for use on sheet metal, printing machines for use on cans, printing machines for use on hollow bodies, printing machines for corrugated cardboard, inkjet printing machines and apparatus, inkjet printers, in particular with one or more inkjets, single-colour or multi-colour inkjet printers, laser marking machines and apparatus, laser printing machines and apparatus, marking machines, lacquering machines, packaging machines, coating machines, digital printing and marking machines, labelling machines, engraving machines, machines and mechanical apparatus for the graphics industry, machines and mechanical apparatus for the further processing of printed matter and printing materials and paper and plastics and metal and organic and inorganic materials, drying machines, drying ovens, pallet changing and transfer machines, stacking machines, machines for handling sheets and plates of metal, foodstuff distribution machines, machines and apparatus for the surface treatment of metals, hot stamping machines and apparatus, thermal transfer machines and apparatus and parts therefor; installation, maintenance and repair of installations, equipment, apparatus, filters, separators, exhausting and conveying devices for the ventilation cleaning, dust removal and air separation of machines and spaces equipped therewith, air filters, blowing machines and fibre separators, air compressors and air ejectors for machines, capture devices, machines, equipment and apparatus for compacting, filling and pressing machine- separated particles, dust and fibres; installation, maintenance and repair of air-conditioning, heating, refrigerating, aerating and ventilating, humidifying and dehumidifying installations and apparatus, air treatment installations, air conveying devices, namely, fans, blowing machines and compressors, air heaters, air coolers, air filters, and nozzle chambers for humidifying; installation, maintenance and repair of drying ovens, drying apparatus, heat accumulators, heat exchangers and parts therefor, in particular active coatings with catalytic properties, heat exchanger ceramics, heat exchanger stones, heat exchanger surfaces, honeycomb structures and integrated catalysts for exhaust air purifying installations, thermal energy accumulators, solar collectors, solar modules for heat generation, and regulating and safety accessories for gas apparatus; installation, maintenance and repair of machines for producing security labels, securities, banknotes; installation, maintenance and repair of machines for applying security labels; installation, maintenance and repair of machines for producing product security means, identification features, security features, security labels, securities, banknotes and components therefor; installation, maintenance and repair of pre- printing data processing equipment, parts or fittings for pre-printing data processing equipment, data processing equipment for data preparation in the nature of continuous data preparation, variable data printing in the nature of database printing, further processing of printed matter, production controls, parts and fittings for interfaces, and parts and fittings for data transfer for devices for transport and storage of printed matter and printing materials and printing material reels and paper and paper reels and plastics and plastics reels and metal and organic and inorganic materials for printing machines, offset printing machines, rotary web printing machines, rotary sheet printing machines, screen printing machines, pad printing machines, flexographic printing machines, gravure printing machines, printing machines for use on sheet metal, printing machines for use on cans, printing machines for use on hollow bodies, printing machines for corrugated cardboard, inkjet printing machines and apparatus, inkjet printers, in particular with one or more inkjets, single-colour or multi-colour inkjet printers, laser marking machines and apparatus, laser printing machines and apparatus, marking machines, lacquering machines, packaging machines, coating machines, digital printing and marking machines, labelling machines, engraving machines, machines and mechanical apparatus for the graphics industry, machines and mechanical apparatus for the further processing of printed matter and printing materials and paper and plastics and metal and organic and inorganic materials, drying machines, drying ovens, pallet changing and transfer machines, stacking machines, machines for handling sheets and plates of metal, foodstuff distribution machines, machines and apparatus for the surface treatment of metals, hot stamping machines and apparatus, thermal transfer machines and apparatus; installation, maintenance and repair of electronic regulating apparatus, control apparatus, monitoring apparatus, quality control apparatus, production control apparatus, temperature monitoring apparatus and web tension controls, being structural parts and fittings for printing machines, offset printing machines, rotary web printing machines, rotary sheet printing machines, screen printing machines, pad printing machines, flexographic printing machines, gravure printing machines, printing machines for use on sheet metal, printing machines for use on cans, printing machines for use on hollow bodies, printing machines for corrugated cardboard, inkjet printing machines and apparatus, inkjet printers, in particular with one or more inkjets, single-colour or multi-colour inkjet printers, laser marking machines and apparatus, laser printing machines and apparatus, marking machines, lacquering machines, packaging machines, coating machines, digital printing and marking machines, labelling machines, engraving machines, machines and mechanical apparatus for the graphics industry, machines and mechanical apparatus for the further processing of printed matter and printing materials and paper and plastics and metal and organic and inorganic materials, namely, for transporting, cutting, punching, folding, collecting, tacking, packaging, compiling, sorting, binding, scanning, checking, perforating, gluing, stapling, tying, bundling, bookbinding; installation, maintenance and repair of electronic regulating apparatus, control apparatus, monitoring apparatus, quality control apparatus, production control apparatus, temperature monitoring apparatus, being structural parts and accessories for installations, equipment, apparatus, filters, separators, suction and conveying devices for the air-technology cleaning, dust removal and air separation of machines and rooms equipped therewith, air filters, blowers and fibre separators, air compressors and air ejectors for machines, collecting devices, machines, equipment and apparatus for compacting, filling and pressing particles, dust and fibres separated from machines; installation, maintenance and repair of electronic regulating apparatus, control apparatus, monitoring apparatus, quality control apparatus, production control apparatus, temperature monitoring apparatus, being structural parts and accessories for ventilation apparatus, air-conditioning, heating, refrigerating, aerating and ventilating, humidifying and dehumidifying installations and apparatus, air treatment installations, air delivery devices, in particular ventilators, blowing machines and compactors, air reheaters, air coolers, air filters, and nozzle chambers for humidifying; installation, maintenance and repair of electronic regulating apparatus, control apparatus, monitoring apparatus, quality control apparatus, production control apparatus, temperature monitoring apparatus, being structural parts and accessories for drying ovens, drying apparatus, heat accumulators, heat exchangers and parts therefor, in particular active coatings with catalytic properties, heat exchanger ceramics, heat exchanger stones, heat exchanger surfaces, honeycomb structures and integrated catalysts for exhaust air purifying installations, thermal energy accumulators, solar collectors, solar modules for heat generation, and regulating and safety accessories for gas apparatus; installation, maintenance and repair of electronic regulating apparatus, control apparatus, monitoring apparatus, quality control apparatus, production control apparatus, temperature monitoring apparatus and web tension controls, being structural parts and accessories for machines for producing product security means, identification features, security features, security labels, securities, banknotes and components therefor; installation, maintenance and repair of electronic regulating apparatus, control apparatus, monitoring apparatus, quality control apparatus, production control apparatus, temperature monitoring apparatus and web tension controls, being structural parts and accessories for machines for applying product security means, identification features, security features, security labels and components therefor; installation, maintenance and repair of electronic regulating apparatus, control apparatus, monitoring apparatus, quality control apparatus, production control apparatus, temperature monitoring apparatus and web tension controls, being structural parts and accessories for machines for packaging product security means, identification features, security features, security labels, securities, banknotes and components therefor; installation, maintenance and repair of electronic regulating apparatus, control apparatus, monitoring apparatus, quality control apparatus, production control apparatus, temperature monitoring apparatus and web tension controls, being structural parts and accessories of and for product security means, identification features, security features, security labels, securities, banknotes and components therefor; installation, maintenance and repair of electric and electronic measuring and testing apparatus and instruments for adjustment and pre-adjustment, for subassemblies and parts for printing machines, offset printing machines, rotary web printing machines, rotary sheet printing machines, screen printing machines, pad printing machines, flexographic printing machines, gravure printing machines, printing machines for use on sheet metal, printing machines for use on cans, printing machines for use on hollow bodies, printing machines for corrugated cardboard, inkjet printing machines and apparatus, inkjet printers, in particular with one or more inkjets, single-colour or multi-colour inkjet printers, laser marking machines and apparatus, laser printing machines and apparatus, marking machines, lacquering machines, packaging machines, coating machines, digital printing and marking machines, labelling machines, engraving machines, machines and mechanical apparatus for the graphics industry, machines and mechanical apparatus for the further processing of printed matter and printing materials and paper and plastics and metal and organic and inorganic materials, drying machines, drying ovens, pallet changing and transfer machines, stacking machines, machines for handling sheets and plates of metal, foodstuff distribution machines, machines and apparatus for the surface treatment of metals, hot stamping machines and apparatus, thermal transfer machines and apparatus; installation, maintenance and repair of electric and electronic measuring and testing apparatus and instruments for adjustment and preadjustment, for subassemblies and parts for installations, equipment, apparatus, filters, separators, exhausting and conveying devices for the ventilation cleaning, dust removal and air separation of machines and spaces equipped therewith, air filters, blowing machines and fibre separators, air compressors and air ejectors for machines, capture devices, machines, equipment and apparatus for compacting, filling and pressing machine separated particles, dust and fibres; installation, maintenance and repair of electric and electronic measuring and testing apparatus and instruments for adjustment and preadjustment, for subassemblies and parts for ventilation apparatus, air-conditioning, heating, refrigerating, aerating and ventilating, humidifying and dehumidifying installations and apparatus, air treatment installations, air delivery devices, in particular ventilators, blowing machines and compactors, air reheaters, air coolers, air filters, and nozzle chambers for humidifying; installation, maintenance and repair of electric and electronic measuring and testing apparatus and instruments for adjustment and preadjustment, for subassemblies and parts for drying ovens, drying apparatus, heat accumulators, heat exchangers and parts therefor, in particular active coatings with catalytic properties, heat exchanger ceramics, heat exchanger stones, heat exchanger surfaces, honeycomb structures and integrated catalysts for exhaust air purifying installations, thermal energy accumulators, solar collectors, solar modules for heat generation, and regulating and safety accessories for gas apparatus; installation, maintenance and repair of electric and electronic measuring and testing apparatus and instruments for adjustment and pre-adjustment, for subassemblies and parts for machines for producing product security means, identification features, security features, security labels, securities, banknotes and components therefor; installation, maintenance and repair of electric and electronic measuring and testing apparatus and instruments for adjustment and pre-adjustment, for subassemblies and parts for machines for applying product security means, identification features, security features, security labels and components therefor; installation, maintenance and repair of electric and electronic measuring and testing apparatus and instruments for adjustment and pre-adjustment, for subassemblies and parts for machines for packaging product security means, identification features, security features, security labels, securities, banknotes and components therefor; installation, maintenance and repair of electric and electronic measuring and testing apparatus and instruments for adjustment and pre-adjustment, for subassemblies and parts of and for product security means, identification features, security features, security labels, securities, banknotes and components therefor; installation, maintenance and repair of remote control, remote operation, remote monitoring, control and regulating apparatus and equipment for ink levers, ink rollers, damping rollers, register adjusting devices, devices for storing and adjusting rollers in inking apparatus and damping units and cylinders, devices for cleaning rollers in inking apparatus, and damping units and cylinders, and inkjet print heads and laser systems, for cutting equipment and cutting cylinders, registers and register marks, web tension settings, being structural parts and fittings for printing machines, offset printing machines, rotary web printing machines, rotary sheet printing machines, screen printing machines, pad printing machines, flexographic printing machines, gravure printing machines, printing machines for use on sheet metal, printing machines for use on cans, printing machines for use on hollow bodies, printing machines for corrugated cardboard, inkjet printing machines and apparatus, inkjet printers, in particular with one or more inkjets, single colour or multi-colour inkjet printers, laser marking machines and apparatus, laser printing machines and apparatus, marking machines, lacquering machines, packaging machines, coating machines, digital printing and marking machines, labelling machines, engraving machines, machines and mechanical apparatus for the graphics industry, machines and mechanical apparatus for the further processing of printed matter and printing materials and paper and plastics and metal and organic and inorganic materials; installation, maintenance and repair of remote control, remote operation, remote monitoring, control and regulating apparatus and equipment for devices for the changing and transporting and storage of printing plates, for inking apparatus, and damping units and printer engine cylinders in printer engines, and for devices for tempering, for inking apparatus, and damping units and cylinders in printer engines; installation, maintenance and repair of remote control, remote operation, remote monitoring, control and regulating apparatus and equipment for printing machines, offset printing machines, rotary web printing machines, rotary sheet printing machines, screen printing machines, pad printing machines, flexographic printing machines, gravure printing machines, printing machines for use on sheet metal, printing machines for use on cans, printing machines for use on hollow bodies, printing machines for corrugated cardboard, inkjet printing machines and apparatus, inkjet printers, in particular with one or more inkjets, single-colour or multi-colour inkjet printers, laser marking machines and apparatus, laser printing machines and apparatus, marking machines, lacquering machines, packaging machines, coating machines, digital printing and marking machines, labelling machines, engraving machines, machines and mechanical apparatus for the graphics industry, machines and mechanical apparatus for the further processing of printed matter and printing materials and paper and plastics and metal and organic and inorganic materials, drying machines, drying ovens, pallet changing and transfer machines, stacking machines, machines for handling sheets and plates of metal, foodstuff distribution machines, machines and apparatus for the surface treatment of metals, hot stamping machines and apparatus, thermal transfer machines and apparatus; installation, maintenance and repair of remote control, remote operation, remote monitoring, control and regulating apparatus and equipment for installations, equipment, apparatus, filters, separators, suction and conveying devices for the cleaning, dust removal and air separation of machines and rooms equipped therewith, air filters, blowers and fibre separators, air compressors and air ejectors for machines, collecting devices, machines, equipment and apparatus for compacting, filling and pressing particles, dust and fibres separated from machines; installation, maintenance and repair of remote control, remote operation, remote monitoring, control and regulating apparatus and equipment for ventilation apparatus, air conditioning, heating, refrigerating, aerating and ventilating, humidifying and dehumidifying installations and apparatus, air treatment installations, air delivery devices, in particular ventilators, blowing machines and compactors, air reheaters, air coolers, air filters, and nozzle chambers for humidifying; installation, maintenance and repair of remote control, remote operation, remote monitoring, control and regulating apparatus and equipment for drying ovens, drying apparatus, heat accumulators, heat exchangers and parts therefor, in particular active coatings with catalytic properties, heat exchanger ceramics, heat exchanger stones, heat exchanger surfaces, honeycomb structures and integrated catalysts for exhaust air purifying installations, thermal energy accumulators, solar collectors, solar modules for heat generation, and regulating and safety accessories for gas apparatus; installation, maintenance and repair of remote control, remote operation, remote monitoring, control and regulating apparatus and equipment for machines for producing product security means, identification features, security features, security labels, securities, banknotes and components therefor; installation, maintenance and repair of remote control, remote operation, remote monitoring, control and regulating apparatus and equipment for machines for applying product security means, identification features, security features, security labels and components therefor; installation, maintenance and repair of remote control, remote operation, remote monitoring, control and regulating apparatus and equipment for machines for packaging product security means, identification features, security features, security labels, securities, banknotes and components therefor; installation, maintenance and repair of remote control, remote operation, remote monitoring, control and regulating apparatus and devices for product security means, authentication features, security features, security labels, securities, banknotes and components therefor; machinery installation, maintenance and repair and rebuilding of machines that have been worn or partially destroyed; commissioning of machines within the framework of installation, namely, machine installation; commissioning of machines in the context of maintenance, namely, machine maintenance; maintenance of machines, namely, cleaning of machines; cleaning of buildings; vehicle cleaning; installation and maintenance of apparatus for the payment of goods, and services and bills, in particular for enabling customers to pay by themselves by payment means in the form of banknotes, and coins, and tokens of value, and cashless payment by debit, credit and loyalty cards being contactless cards, and contact cards and near field communication (NFC) apparatus, with return of change; installation and maintenance of money-dispensing apparatus; installation and maintenance of money-receiving apparatus; installation and maintenance of money-dispensing and money-receiving apparatus; installation and maintenance of vending machines; installation and maintenance of accessories for the aforesaid apparatus, in particular cash boxes for receiving payment means being, in particular, banknotes, and coins, and tokens of value; installation, maintenance and repair of voice control devices for printing machines, offset printing machines, rotary web printing machines, rotary sheet printing machines, screen printing machines, pad printing machines, flexographic printing machines, gravure printing machines, printing machines for use on sheet metal, printing machines for use on cans, printing machines for use on hollow bodies, printing machines for corrugated cardboard, inkjet printing machines and apparatus, inkjet printers, in particular with one or more inkjets, single colour or multi-colour inkjet printers, laser marking machines and apparatus, laser printing machines and apparatus, marking machines, lacquering machines, packaging machines, coating machines, in particular with rotational operation for web-form and isolated materials, digital printing and marking machines on the basis of electrophotography, magnetography, xerography, inkjet, exposure apparatus, being parts of printing machines for contact printing or creating circuit and print templates, numbering, coding, imprinting and marking machines, in particular for the graphics sector, the packaging sector and the data processing sector, labelling machines, engraving machines